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#11
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On Jul 7, 6:14*am, Keith Dysart wrote:
As i pointed out, the energy levels are well above the noise. You have certainly not proved that to be true. The current is essentially DC for most of the year. Therefore, you cannot assume the proof to the question of whether the photons, which may or may not exist, are above the noise level. (Hint: assuming the proof is one of the most well known logical diversions.) What I said was that one photon at 0.5 cycles/year is NOT above the noise. You are free to try to prove that I was wrong. If you window your signal for 1/2 of a year, I believe you will find it to be DC steady-state. I do not believe it is far enough removed from DC to generate any detectable photons. I will be away from my computer for a few days. In the meanwhile, I suggest that you prove that a conservation of power principle exists and a conservation of current principle exists. Until you do that, you are just blowing smoke. But it you succeed, you will no doubt receive a Nobel Prize. -- 73, Cecil, w5dxp.com |
#12
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![]() "Cecil Moore" wrote ... On Jul 7, 6:04 am, Keith Dysart wrote: At a junction, where charge can not be stored, this reduces to Sorry, your examples are irrelevant to the technical fact that there is no conservation of current principle because charge can be stored. In EM current is incompressible. EM is older then electrons. "charge can be stored" apply to electrons. It is impossible to marry EM and electrons. Until you can prove a conservation of current principle, you are wasting my time. "According to theory" a conservation of current principle (continuity equation) is the assumption. In EM is the displacement current in solid insulators (also in vacuum). It is always incompressible because the motions of the particles are synchronized (charges can not be gathered). EM is beautiful but useles in techniques. It is useful to teach the math. S* -- 73, Cecil, w5dxp.com |
#13
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On Jul 7, 8:05*am, joe wrote:
Keith Dysart wrote: current law derives from conservation of charge. Still, you have made some progress, so I will try again with showing the derivation, though this time with charge and current. Conservation of charge requires that: * the charge added to a region * - the charge removed from a region * equals * the charge originally in the region * + the increase of charge stored in the region When the charge can be described with functions of time, we can write: * Qin(t) - Qout(t) = Qoriginal + Qstored(t) Differentiating we obtain * *Qin(t)/dt - Qout(t)/dt = 0 + Qstored(t)/dt At a junction, where charge can not be stored, this reduces to * *Qin(t)/dt - Qout(t)/dt = 0 Alternatively * *Qin(t)/dt = Qout(t)/dt Recognizing that Q(t)/dt is charge flow per unit time or current we obtain Kirchoff's current law, colloquially: the current flowing in to a junction equals the current flowing out of a junction. I leave it to you to do the similar derivation for energy, based on conservation of energy. The result will be * *EnergyIn(t)/dt = EnergyOut(t)/dt And similar to Kirchoff, this applies at a juncion, a place where energy can not be stored. Of course Energy(t)/dt is just a mathematical expression of energy flow or power, so we obtain * *PowerIn(t) = PowerOut(t) * *(at a junction) But don't beleive me. Do the derivation yourself. You can pattern your derivation on the one above for Kirchoff. I'd go on to show how my analysis of your circuit carefully picked junctions that could not store energy, but I have found it better to educate one step at a time. So we can do that later. ...Keith How do you define energy of a node without reference to another node. How is it measured I am sorry, I do not understand the question. Can you provide a bit more context, or perhaps a representative example? ....Keith |
#14
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On Jul 7, 12:57*pm, Cecil Moore wrote:
On Jul 7, 6:04*am, Keith Dysart wrote: At a junction, where charge can not be stored, this reduces to Sorry, your examples are irrelevant to the technical fact that there is no conservation of current principle because charge can be stored. Until you can prove a conservation of current principle, you are wasting my time. This is toooooo amusing. You refuse to start to examine the proof because it has not yet been proved ... which can not happen until you examine the proof. You are truly amazing at developing mind stopping techniques that inhibit your ability to learn. ....Keith |
#15
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On Jul 7, 1:12*pm, Cecil Moore wrote:
On Jul 7, 6:14*am, Keith Dysart wrote: As i pointed out, the energy levels are well above the noise. You have certainly not proved that to be true. The current is essentially DC for most of the year. Therefore, you cannot assume the proof to the question of whether the photons, which may or may not exist, are above the noise level. (Hint: assuming the proof is one of the most well known logical diversions.) What I said was that one photon at 0.5 cycles/year is NOT above the noise. Of course, there are many photons in the 50W signal previously mentioned. That is the only way to get to 50W. You are free to try to prove that I was wrong. If you window your signal for 1/2 of a year, I believe you will find it to be DC steady-state. I do not believe it is far enough removed from DC to generate any detectable photons. I will be away from my computer for a few days. In the meanwhile, I suggest that you prove that a conservation of power principle exists and a conservation of current principle exists. Until you do that, you are just blowing smoke. But it you succeed, you will no doubt receive a Nobel Prize. Ahhm, so you are proposing a new concept: a lower frequency limit where a sinusoid stops being an EM wave and becomes what? Slowly varying DC? I have never seen such a concept mentioned previously. Perhaps it will be you who deserves the Nobel prize. At what frequency, approximately, is this limit? Or, if that is not yet known, what is the lowest frequency that you are currently convinced would be an EM wave, such that the cutoff must be less than this frequency? Ballpark is good: 1 MHz 10 kHz 1 kHz 100 Hz 10 Hz 1 Hz 0.1 Hz 0.01 Hz 0.001 Hz 1 uHz 1 nHz Just to the nearest order of magnitude, from the above list, which frequency are you sure is still an EM wave rather than slowly varying DC? I am pretty sure that you would accept 10 kHz as been EM. Omega used to be around 10 kHz. How about 60 Hz? This is standard AC power in some jurisdictions. 25 Hz used to be common as AC power. 10 Hz? Is the audio on its way to the woofer an EM wave? 1 Hz? Just an order of magnitude frequency that you are sure your EM cutoff frequency will be below. And how much above the noise does a photon have to be for you to consider it to be a photon? Perhaps this will help you choose your cutoff frequency, though it seems to me you will have some difficulty when there are lots and lots of photons at this low frequency. Will this not be adequate for detection? By the way, is it possible to detect a single photon at 10 kHz, a frequency which I am pretty sure you would consider to be an EM wave. ....Keith |
#16
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On Jul 7, 6:08*pm, Keith Dysart wrote:
You refuse to start to examine the proof because it has not yet been proved ... which can not happen until you examine the proof. Again, you are completely confused and mistaken - I simply refuse to allow you to interfere with my vacation. Have fun while I'm gone. -- 73, Cecil, w5dxp.com |
#17
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Keith Dysart wrote:
On Jul 7, 8:05 am, joe wrote: Keith Dysart wrote: current law derives from conservation of charge. Still, you have made some progress, so I will try again with showing the derivation, though this time with charge and current. Conservation of charge requires that: the charge added to a region - the charge removed from a region equals the charge originally in the region + the increase of charge stored in the region When the charge can be described with functions of time, we can write: Qin(t) - Qout(t) = Qoriginal + Qstored(t) Differentiating we obtain Qin(t)/dt - Qout(t)/dt = 0 + Qstored(t)/dt At a junction, where charge can not be stored, this reduces to Qin(t)/dt - Qout(t)/dt = 0 Alternatively Qin(t)/dt = Qout(t)/dt Recognizing that Q(t)/dt is charge flow per unit time or current we obtain Kirchoff's current law, colloquially: the current flowing in to a junction equals the current flowing out of a junction. I leave it to you to do the similar derivation for energy, based on conservation of energy. The result will be EnergyIn(t)/dt = EnergyOut(t)/dt And similar to Kirchoff, this applies at a juncion, a place where energy can not be stored. Of course Energy(t)/dt is just a mathematical expression of energy flow or power, so we obtain PowerIn(t) = PowerOut(t) (at a junction) But don't beleive me. Do the derivation yourself. You can pattern your derivation on the one above for Kirchoff. I'd go on to show how my analysis of your circuit carefully picked junctions that could not store energy, but I have found it better to educate one step at a time. So we can do that later. ...Keith How do you define energy of a node without reference to another node. How is it measured I am sorry, I do not understand the question. Can you provide a bit more context, or perhaps a representative example? ...Keith Sure. You described charge flow in and out of an isolated node with no need to reference any other node or part of the circuit. Then you say the same thing can be defined for energy. However, how is energy defined in terms that only refer to characteristics of the node without involving any other part of the circuit or other nodes. |
#18
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On Jul 7, 9:36*pm, joe wrote:
Keith Dysart wrote: On Jul 7, 8:05 am, joe wrote: Keith Dysart wrote: current law derives from conservation of charge. Still, you have made some progress, so I will try again with showing the derivation, though this time with charge and current. Conservation of charge requires that: * the charge added to a region * - the charge removed from a region * equals * the charge originally in the region * + the increase of charge stored in the region When the charge can be described with functions of time, we can write: * Qin(t) - Qout(t) = Qoriginal + Qstored(t) Differentiating we obtain * *Qin(t)/dt - Qout(t)/dt = 0 + Qstored(t)/dt At a junction, where charge can not be stored, this reduces to * *Qin(t)/dt - Qout(t)/dt = 0 Alternatively * *Qin(t)/dt = Qout(t)/dt Recognizing that Q(t)/dt is charge flow per unit time or current we obtain Kirchoff's current law, colloquially: the current flowing in to a junction equals the current flowing out of a junction. I leave it to you to do the similar derivation for energy, based on conservation of energy. The result will be * *EnergyIn(t)/dt = EnergyOut(t)/dt And similar to Kirchoff, this applies at a juncion, a place where energy can not be stored. Of course Energy(t)/dt is just a mathematical expression of energy flow or power, so we obtain * *PowerIn(t) = PowerOut(t) * *(at a junction) But don't beleive me. Do the derivation yourself. You can pattern your derivation on the one above for Kirchoff. I'd go on to show how my analysis of your circuit carefully picked junctions that could not store energy, but I have found it better to educate one step at a time. So we can do that later. ...Keith How do you define energy of a node without reference to another node. How is it measured I am sorry, I do not understand the question. Can you provide a bit more context, or perhaps a representative example? ...Keith Sure. You described charge flow in and out of an isolated node with no need to reference any other node or part of the circuit. Then you say the same thing can be defined for energy. However, how is energy defined in terms that only refer to characteristics of the node without involving any other part of the circuit or other nodes. Perhaps some examples will help. Consider the output terminals of a generator to be junction. Then the power delivered from the generator to the junction must exactly equal, at all times, the power taken from the junction by the load, since there is no storage in the junction. It should be noted that the 'junctions' used for a power analysis are not the same as the junctions used in Kirchoff's current law. The concepts are analogous, not identical. Another example. In the simple Thevenin generator, the power provided by the voltage source must exactly equal, at all times, the power taken by the resistor plus the power taken by the load. In this example, it is difficult (impossible?) to identify a physical 'junction' where the power must balance, yet the notion is still applicable. ....Keith |
#19
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On Jul 8, 6:04*am, Keith Dysart wrote:
Consider the output terminals of a generator to be junction. Then the power delivered from the generator to the junction must exactly equal, at all times, the power taken from the junction by the load, since there is no storage in the junction. I will leave you with this parting thought. All that you are saying is that the power at one point (special case: away from any energy storage device) is the same as the power at another point in the same wire (special case: an infinitesimal distance away). No rational person would argue with you on that point. However, that is NOT a general case and in no way proves that power is conserved in general. It is simply a special case where there is a one-to-one correspondence between energy and power, something I pointed out earlier. The throw of a switch can cause power to be created or destroyed. The throw of a switch cannot cause energy to be created or destroyed. That's the basic conceptual difference between power and energy that you are missing. The same thing is true for current vs charge. In my energy articles, I took advantage of the special case of one-to- one correspondence between average energy and average power. You neglected to do that for your instantaneous power calculations and proved beyond any doubt that power is not conserved. Your own continuity equation posting indicated that you had erroneously omitted something important from your previous calculations. -- See y'all later, 73, Cecil, w5dxp.com |
#20
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Keith Dysart wrote:
Perhaps some examples will help. Consider the output terminals of a generator to be junction. Then the power delivered from the generator to the junction must exactly equal, at all times, the power taken from the junction by the load, since there is no storage in the junction. It should be noted that the 'junctions' used for a power analysis are not the same as the junctions used in Kirchoff's current law. The concepts are analogous, not identical. Another example. In the simple Thevenin generator, the power provided by the voltage source must exactly equal, at all times, the power taken by the resistor plus the power taken by the load. In this example, it is difficult (impossible?) to identify a physical 'junction' where the power must balance, yet the notion is still applicable. ...Keith It sounds like your "junction" for energy analysis is what's called a "port" in RF analysis. If so, it would be less confusing for you to use that term, since "junction" has a different established meaning in circuit analysis. Roy Lewallen, W7EL |
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